This is a brand new Asus K52F battery pack. This Asus K52F battery compatible with many Asus models in the Asus K52 series, including the K52F and K52S models. This Asus K52F battery is compatible with all versions of Windows including Windows XP, Windows Vista & Windows 7.

This Asus K52F battery pack is rated 11.1 volts and 5200 mAh and will typically last 2.5 hours on a full charge. Longer battery life can be achieved by dimming your screen and closing unused programs.

This Asus K52F battery replacement is typically superior to the original battery and is 100% compatible with your Asus K52F laptop. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 2 - 2.5 hours of run time with this Asus K52F battery when new, depending on your energy use. The lithium-ion cells inside this cartridge have an energy capacity of 4400 mAh. This battery will be compatible with batteries rated at 4800 & 5200 mAh capacities.